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Product category: Closed loop control equipment for pressure

PT130 & PT160 Hydraulic Pressure Sensors

Dynisco's PT130 & PT160 sensors are designed to measure hydraulic pressure on injection molding machines. The series withstands cyclic pressure and provides outstanding performance under the severe demands of measuring the injection ram and clamp pressure of injection molding machines. Variations in the hydraulic pressure profile indicate irregularities during the injection and feeding stages of the molding operation and provide information about the stability of the injection ram system.

LCR Capillary Rheometer

The new LCR7000 Series Capillary Rheometers offer many new features and will meet the demands of a 24-hour-a-day shop floor operation while maintaining the highest possible level of accuracy, repeatability and sensitivity. The LCR series rheometers are versatile and easy to use yet they offer the most sophisticated materials characterization, data analysis, and reporting capabilities. The LCR series can be used with a standard load cell and a barrel mounted pressure transducer.Sophisticated SoftwareLAB KARS (“Kayeness Advanced Rheology Software”) is the most powerful and easy to use rheological Windows™-based software package available. Just a few of its easily useable features include: Bagley and Rabinowitsch Corrections plus power law, Carreau, Modified Cross and polynomial viscosity models. With this software users can merge multiple data files from shear stress, shear rate, or thermal stability tests. The resident KARS SQC module can be used to quickly identify viscosity variations in different lots of material. A program for the correlation of melt viscosity to intrinsic viscosity, for PET and Nylon, is also included.Real-Time DisplayIn addition to all of its other powerful features LAB KARS for Windows™ provides a real time display of force or pressure versus time as a test progresses. This feature allows the operator to identify the steady state flow condition for the material. In addition, the presence of contamination, unmelted resin, or bubbles in the material may be identified from spikes in the force versus time curve.

The latest development in Melt Flow Indexers, the LMI is capable of delivering a wide range of data that includes not only melt index values, but also shear stress, shear rate, viscosity and apparent melt density, as well as testing conditions.

The addition and improvements of key attributes help alleviate some of the burden of running a melt index test from the technician and improves repeatability of the data.

ViscoSensor Online Rheometer

Specifically designed for the thermoplastics resin industry, the ViscoSensor provides continuous measurements of the melt flow rate or apparent viscosity directly on the manufacturing process.

The ViscoSensor system consists of two parts: a Viscosensor Rheologic Sensing Unit (RSU), connected directly to the process, and a Rheologic Control Unit that controls the Viscosensor test parameters (temperature, pressure, rate), provides outputs of computed results, and provides communications to an external distributed control system when required.

There are now 2 versions of the control unit available:

RCU: Combines the rheological properties of a Laboratory Capillary Rheometer with the MFI readings of a Melf Flow Indexere-RCU: Provides simplified rehological data for processors

Ensure Consistent Results with the continuous monitoring of material properties you get with the ViscoSensor.

Continuous Melt Rheometer (CMR IV)

Specifically designed for the thermoplastics resin industry, the Dynisco CMR series can be configured to measure melt flow rate, high/low load melt flow rate, apparent viscosities, or to perform other customer defined tests.

The CMR system consists of two parts: a rheometer head connected directly to the process which samples, conditions, and measures the melt flow of the resin, and an RCU (Rheometer Control unit) that controls the CMR test parameters (temperature, pressure, rate), and provides outputs of computed results, and communications to an external distributed control system when required.

LME- Laboratory Mixing Extruder

The Dynisco Polymer Test LME Laboratory Mixing Extruder is a unique laboratory tool developed to evaluate the processability of a variety of plastics and rubbers prior to production. From very fine powders to coarse materials, the LME will meet many extruding needs.

The LME possesses a moveable header and dial gage that allows for constant mixer adjustability. While in operation, the rotational shearing (mixing) is controlled by adjusting the distance between the end of the rotor and the inside header. This unique feature, not found in other extruders, allows for various extrudate mix levels in a single sample run. The rotational shearing of the LME system provides extensive and intensive mixing and can be used in the production of polymer blends or alloys. These blends have been found homogeneous enough to be spun into fibers over the entire range of composition. Since mixing may be independently adjusted, agglomerates of additives, such as fillers or pigments, may be accurately controlled

Vertex Mercury Free Pressure Sensor

Dynisco's Vertex melt pressure sensor innovation matches or exceeds the performance of the traditional sensor. The big differences are that Vertex is more robust, much faster, and significantly friendlier to the environment. The pressure range for Vertex has been extended and is now available from 250 - 10,000 PSI. Vertex is far more accurate within our online equipment than any other mercury-filled sensor and is ideal for industrial applications that require low pressure. Not only is this an overall improvement to ones process, but it helps with customers that are focused on sustainability and zero-waste.

The direct measurement tip is a simple and elegant design with a more robust diaphragm. Direct measurement of the process reduces errors that are transferred by complicated internal support structures, transmission fill materials, or moving push rods. The diaphragm thickness is pressure range dependent and can be up to 7.5 times thicker than a traditional sensor. Add to these features, a diaphragm composition of Inconel 718 coated with the abrasion resistant properties of DyMax® and experience the true definition of a robust sensor that has proven to increase the life of the sensor and significantly lowers the cost of ownership.

Vertex design innovation also extends to the speed of response of the sensor. Faster processes and controls demand faster sensing measurements. Vertex is many times faster than traditional sensors improving real time production.

Vertex sensors are designed to work with universal pressure indicators. HART digital communication is available for more extensive diagnostics and remote configuration. An optional Type J or K thermocouple is available to provide a melt temperature signal as well as a 4-20 mA temperature output. Vertex is equipped with a 1/2-20 UNF for installation in standard transducer mounting holes. An adaptor is also available to install 1/2-20 UNF units into a Button Seal application. A sealed, welded shell and electrical connection are available if washdown capability is needed for food or mechanical applications (not available if thermocouple option TCx is selected).

Echo Series Melt Pressure Sensors

The Echo™ Series of melt pressure sensors offer quality performance and value for plastic processing utilizing standard configurations and pressure ranges. Echo sensors are designed to meet customer requirements by providing a combination of economic value and performance for general extrusion applications while providing a ±0.2% repeatability when measuring process pressures. Use Echo Series sensors when the application requires a quality measurement for optimized control, but not the costs of all the extra features.

Dynisco has produced field-proven pressure sensors for more than 60 years. Echo was designed with the best engineering practices and is backed by Dynisco with a two full years of warranty – double the protection of comparably-priced sensors.

Dynisco technology is widely accepted by OEMs and end users throughout the world. The Echo Series sensors are available with 3.33mV/V, 4-20mA, 0-5VDC or 0-10VDC outputs designed to work with most industrial controls. In addition to melt pressure measurement,Echo Series offer a optional melt temperature measurement with type J, K thermocouples or RTD. The Echo Series are equipped with a 1/2-20 UNF or M18 thread for installation in standard transducer mounting holes. Additional mounting configurations are available.

ATC990 Process Controller

The ATC990 with a graphical/text LCD display is a universal input process controller with advanced functionality including Trend views as well as Digital Inputs, USB and data logging options. It provides a cost-effective way to control a single process parameter, such as for a plastics extruder. Designed to improve user efficiency many features are integrated to reduce commissioning time, simplify operation and minimize maintenance downtime. Reliably auto-tune and alarm on strain guage, DC voltage, temperature or current inputs. The ATC990 can also control differential pressure when an optional secondary strain gauge input is used. Other useful display information includes alarm set points, peak values, error conditions, and engineering unit beacons. The controller provides a quick and easy set-up which includes a step by step configuration wizard which starts automatically on the first start up. An optional 24Vdc output supply is also available.

UPR900 Process Indicator

The UPR900 is a compact 1/4 DIN process indicator. The UPR900 can display your choice of engineering units related to a selectable range of input types. Add an optional secondary input for an all-in-one display of polymer melt pressure and temperature. The secondary input can be strain guage to indicate differential pressure measurement. The UPR900 includes two standard assignable alarms with the option to add a 3rd. The LCD graphical display allows for easy reading of trending graphs with user selectable monochromatic configurations. The UPR900 is easily field-configured, can be programmed remotely via optional Modbus RS-485 or can be programmed with BlueControl software.

1480 1/8 DIN Panel Indicator

The 1480 is a Universal Pressure or Temperature Input Indicator with single or dual configurable alarms, as well as optional linear retransmission of displayed Process Variable. Ideal for use in Extrusion applications.

1490 5 Digit 1/8 DIN Panel Indicator

The 1490 is a Universal Input Indicator with single or dual configurable alarms, optional linear retransmission of Process Variable, Transmitter power supply option as well as optional Modbus communications.

Rupture Disks/Burst Plugs

The Model BP420 burst plugs are designed specifically for use in plastic extrusion systems. Burst Plugs (also known as rupture disks) are designed for reliable, emergency relief of excess pressure in a system. The Model BP420 will instantaneously rupture at a specific, predetermined pressure and temperature. Each one piece assembly consists of a 304 stainless steel body with a welded Inconel rupture disk. The disk is flush with the tip of the burst plug with no cavity for product build up. A burst plug may be specified for primary relief in applications where pressure build-up can occur so rapidly that the response time of a relief valve is inadequate,such as in a polymerization reaction vessel.

All burst plugs are tested at rated burst pressure and temperature. In addition, markings on the burst plugs are laser engraved and more visible, and each burst plug is labeled and shipped in a protective package.

SPX-T - High Accuracy with Temperature Compensation

The SPX-T is a smart 4-20mA pressure transmitter that includes Temperature Compensation and DynaLarity™, a Dynisco innovation. The SPX-T delivers the best spec performance in the line. Temperature Compensation is based on an RTD measurement that compensates for temperature variations which reduces temperature-related drift and increases accuracy. No need to re-zero for temperature changes after installation. DynaLarity uses an advanced algorithm that will linearize offsets due to process effects on the sensor. Combined Temperature Compensation and DynaLarity reduces temperature-related drift by as much as 80% and improves accuracy by more than 60% over other sensors. Process temperature output is available. HART communication is standard. The SPX3242 is an all-welded construction that features a 1/2-20 UNF thread for installation in standard transducer mounting holes. Many other threaded configurations are available.

1496 & 1498 Series Temperature Controllers

The 1496 & 1498 Series Temperature Controllers are an economic solution to precision temperature control of extruders. With two DIN sizes and multiple output configurations, the controller is suitable for twin and single screw extruders, both heat only die and adapter zones, in addition to heat/cool for barrel zones. The 1496 (1/16 DIN format) & 1498 (1/8 DIN format) Series can also be used in an indicator-only mode, allowing one instrument to be used for all applications. With three default parameter sets for Indicator, heat and heat/cool modes, The 1496 & 1498 Series controllers offer the ultimate in flexibility for the control of industrial plastic extruders. The 1496 & 1498 Series was designed for fast configuration to match specific settings and default parameters of the extruder. Three alarm settings are standard and can be used for process high, process low, SP deviation, band, logical OR / AND, loop alarm for process control security. Process alarms have adjustable hysteresis.

About us

Company details

Dynisco has more than 6 decades of commitment to helping customers provide a true “window into the process” with our leading edge quality products and award winning innovated solutions for indication and control critical plastic process measurements including, pressure, temperature and polymer rheology. Harnessing these critical parameters allow the plastic processor to reduce lot to lot variations, reduce scrap, improve productivity, and integrate recycled materials into their process without sacrificing product quality.

Dynisco leading-edge sensors, controls, and analytical equipment are built of the expertise of an experienced engineering staff and are supported globally through our technical experts backed by our world-class manufacturing locations in the United States, Malaysia, and China. Dynisco also supports Europe and the Middle East through our sales, engineering and distribution center located in Heilbronn, Germany. Customers around the world have come to depend on Dynisco for product innovation and advanced system solutions that have a significant impact on their manufacturing process efficiencies.